(1) Timely cultivation and topdressing to meet the crop's nutrient needs. During the jointing stage to the small bell-mouth period (from 6-leaf to 10-leaf stage), fertilization is carried out in combination with weeding using a cultivator. This process helps decompose wheat residues and control weeds. Topdressing should mainly consist of nitrogen fertilizer, not applied on the surface but placed near the root zone or incorporated into the soil after application, which improves fertilizer efficiency and prevents seedling burn.
(2) Timely drainage and irrigation to avoid waterlogging and drought. Throughout the growth period of maize, the plants have some drought resistance, but excessive moisture can cause problems. After heavy rains, it's essential to drain water promptly to prevent issues like root rot and sprouting of ears. From the booting stage to the grain-filling stage, corn has high water demand and is more sensitive to drought than flooding. Therefore, timely irrigation is crucial during this time. One or two irrigations can significantly boost yield and quality.
(c) Strengthen field management to prevent lodging, a major issue that limits corn production. Especially in the middle to late growth stages, lodging can severely reduce yields. To minimize this risk, choose varieties with good lodging resistance, plant at reasonable densities, apply fertilizers appropriately, and perform moderate tillage. Remove weak or empty plants early. If a dense area with a high risk of lodging is identified, apply plant growth regulators in advance. For example, spraying 50% Chlorhexidine Hydrochloride diluted 200 times before the booting stage can effectively prevent lodging.
(d) Effective pest and disease control. Common diseases in summer corn include leaf spot, stem rot (blight), and dwarf mosaic virus. Major pests include corn borers, armyworms, cotton bollworms, aphids, underground pests, and thrips. Regular monitoring and forecasting are key to successful prevention and control. Implement integrated pest management strategies to keep these threats under control.
(e) Harvest at the right time for optimal quality and yield. When corn matures, the husks dry and loosen, the "milk line" disappears, and a black layer forms at the base of the kernels, indicating maturity. At this point, moisture content is usually around 30%. However, premature harvesting is common, leading to high moisture levels, lower bulk density, mold, and damaged grains, all of which negatively impact both yield and quality. It's best to wait until the ears are fully mature and the kernels are firm. A slightly delayed harvest can improve both production and grain quality. Also, ensure proper coordination with wheat planting schedules to maintain a smooth farming cycle.
Maize Expert Advisory Group
July 28, 2006
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Rabies is a viral infection transmitted by saliva of infected mammals, most commonly wild, terrestrial carnivores (e.g., skunks, raccoons, foxes, coyotes) or bats.rabies virus usually moves along a neural pathway and enters the CNS. After entrance into the CNS, the virus is unlikely to be affected by antirabies antibodies and encephalomyelitis usually develops and almost always is fatal. Vaccination of rabies vaccine in a timely manner is mandatory.
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